Two lines of people are needed. Girl then guy then girl then guy and so on. Now, the first person puts a card to his/her lips and sucks in air and keeps the card to their lips and passes it to the guy/girl beside of them via kissing.
After the card is passed, the person who passes it drinks their half cup of beer, and flips the cup until its sitting on its top. The next person does the same, followed by the next, and so on. After the line is finished, the cards must be passed all the way back to the first person in the line. The team who finishes first is the winner.
The losing team must then remove one article of clothing (shoes and socks do not count!). The game continues until one team is completely nude.